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Finding the Fourth Proportional to 700.02, 965.94 and 389.52

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Solution

The fourth proportional to 700.02, 965.94 and 389.52 is: 537.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.02 : 965.94 = 389.52 : x
  2. Step 2: Convert to fraction form
    700.02/965.94 = 389.52/x
  3. Step 3: Cross multiply
    700.02x = 965.94 × 389.52
  4. Step 4: Simplify right side
    700.02x = 376,252.95
  5. Step 5: Solve for x
    x = 376,252.95/700.02
  6. Step 6: Final answer
    x = 537.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.